If you’re searching for the best 21 inch self propelled battery mowers, you’re looking for a versatile, maintenance-friendly option that balances power with convenience. The Greenworks 48V stands out for its quiet brushless motor and included LED headlight, making it ideal for early mornings or shaded yards. The WORX Nitro WG760 offers variable speed and a larger cutting deck for bigger lawns. However, tradeoffs often include battery runtime versus power, and higher-end models tend to come with a premium price. Continue reading to see how these options compare and which one matches your yard’s requirements.
Key Takeaways
- Top-performing models balance battery capacity with motor efficiency to maximize runtime without sacrificing power.
- Many premium options include features like LED lighting, variable speed, and multi-function mowing modes, but these increase cost.
- Battery compatibility across brands is limited; choosing a system with extra batteries can extend mowing sessions.
- Self-propelled features significantly reduce effort on larger or hilly lawns but add to the overall weight and complexity.
- Price often correlates with features and battery capacity—be prepared to invest more for longer runtime and advanced functionality.
| 21 inch self propelled battery mower | Cutting Width | Runtime | Battery |
|---|---|---|---|
| Greenworks 48V | 21 inches | — | — |
| NovorikX 60V 5Ah Self-Propelle | 21 inches | Up to 65 minutes | — |
| Litheli 21" 40V Cordless Lawn | 21 inches | Up to 45 minutes | — |
| SENIX X6 60V Max Cordless Lawn | 21 inches | Up to 60 minutes | 8.0Ah |
| Greenworks 80V 21" Self-Propel | 21 inches | Approximately 40-45 minutes | 4.0Ah |
| Greenworks 40V 21-inch Brushle | 21 inches | Up to 45 minutes | 5.0Ah included |
| WORX Nitro Cordless Lawn Mower | 21 inches | Variable, up to 45 minutes | 2 × 5.0Ah (20V) PowerShare Pro |
| SENIX X6 60V Max 21-Inch 3-in- | 21 inches | Up to 60 minutes | — |
| WORX Nitro Cordless Lawn Mower | 21 inches | — | 2 × 5.0Ah (20V) PowerShare |
More Details on Our Top Picks
Greenworks 48V (24V x 2) 21″ Brushless Cordless Self-Propelled Lawn Mower with LED Headlight, 2 Batteries and Dual Port Charger
This Greenworks model stands out for its combination of a powerful 48V battery system and versatile 4-in-1 cutting options, making it a strong choice for homeowners who want efficiency without the fuss of gas. Unlike the SENIX X6, which excels in quiet, high-performance mowing, this Greenworks provides a balanced mix of runtime and maneuverability, though its 45-minute runtime can be limited on larger lawns. The self-propelled rear-wheel drive simplifies handling, especially for uneven terrain, but the added weight of two batteries may tire some users. Its LED headlight enhances usability in low light, a feature not present on all competitors. Overall, this mower suits those who value reliable power and multi-functionality, though heavy battery packs could be a drawback for elderly users or those with small storage spaces.
Pros:- Powerful 48V battery with up to 45 minutes runtime
- Self-propelled rear-wheel drive for easy maneuvering
- Versatile 4-in-1 system for mulching, bagging, side discharge, and leaf pickup
Cons:- Battery weight may reduce maneuverability for some users
- Runtime can vary depending on grass density and terrain
- Limited compatibility with other Greenworks tools
Best for: Homeowners with medium-sized lawns who want a reliable, versatile mower with good runtime and easy handling.
Not ideal for: Small yard owners or elderly users who prefer lighter, simpler push mowers due to weight and complexity.
- Battery Voltage:48V (24V x 2)
- Cutting Width:21 inches
- Run-Time:Up to 45 minutes
- Batteries Included:Yes, two 5.0Ah
- Charger Included:Dual port rapid charger
- Motor Type:Brushless
Our verdict“This mower offers a solid all-around choice for users seeking power and versatility in a self-propelled battery mower.”
NovorikX 60V 5Ah Self-Propelled Electric Cordless Lawn Mower, 21-Inch, Brushless Motor, LED Headlight, Rapid Charger, 3-in-1 Versatility
The NovorikX 60V mower makes a compelling case for homeowners with larger lawns, thanks to its extended 65-minute runtime and robust 1200W brushless motor. Compared to the Greenworks 48V model, it offers more power and longer operation, which makes it suitable for demanding yard conditions. The self-propelled feature with variable speed helps maintain control across different terrains, but this added capability does come with increased weight, making it less nimble for smaller or less experienced users. Its three cutting modes—mulch, bag, and side discharge—cover most lawn care needs, supported by a solid 3-year warranty. However, the assembly process can be time-consuming, and the weight could be a barrier for some.
Pros:- Long runtime of up to 65 minutes for large lawns
- Powerful 1200W brushless motor for efficient cutting
- Self-propelled with variable speed control for ease of use
- Versatile 3-in-1 cutting system
Cons:- Heavy weight may challenge users with limited strength
- Assembly can be somewhat complicated and time-consuming
- Battery life may vary with grass density and terrain
Best for: Homeowners with large, demanding lawns who prioritize long runtime and powerful mowing performance.
Not ideal for: Small yard owners or those who prefer lightweight, easy-to-store mowers because of the mower’s weight and setup complexity.
- Battery Voltage:60V
- Battery Capacity:5Ah
- Cutting Width:21 inches
- Runtime:Up to 65 minutes
- Drive Type:Self-propelled, variable speed
- Warranty:3-year limited
Our verdict“Ideal for large yards needing extended runtime and high power, though weight and setup complexity are considerations.”
Litheli 21″ 40V Cordless Lawn Mower, Self-Propelled & Push 2-in-1 Battery Powered Lawnmower with 2 x 8.0Ah
The Litheli 40V mower offers a unique blend of stepless speed control and foldable design, making it perfect for users who need adaptable mowing speeds and easy storage. Its self-propelled system, with speeds from 1.4 to 2.9 MPH, helps navigate uneven lawns without excessive effort, contrasting with the fixed-speed systems of other models like the SENIX X6. The large 8.0Ah batteries provide up to 45 minutes of runtime, but the 40V system delivers less power than 60V or 80V options, which may limit cutting efficiency on thicker grass. Its foldable, space-saving design is excellent for small storage areas, but the lighter weight can compromise stability on slopes. This mower is best suited for homeowners with manageable lawns who value storage and speed control.
Pros:- Stepless speed control for customized mowing experience
- Foldable, space-saving design for easy storage
- Powerful 8.0Ah batteries for up to 45 minutes runtime
Cons:- Lower power system limits cutting thick or tall grass
- Lighter frame may reduce stability on slopes
- Requires manual assembly and adjustment
Best for: Homeowners with small to medium lawns seeking adjustable speed and easy storage options.
Not ideal for: Large or thick-lawning yards that require maximum power and longer runtime, due to lower voltage and power capacity.
- Battery Voltage:40V
- Battery Capacity:8.0Ah
- Cutting Width:21 inches
- Runtime:Up to 45 minutes
- Drive Type:Self-propelled with variable speed
- Foldable:Yes
Our verdict“Best suited for users who prioritize adjustable speed and compact storage over maximum power in a self-propelled mower.”
SENIX X6 60V Max Cordless Lawn Mower – 21-Inch 3-in-1 Self-Propelled with 8Ah Battery & Charger
The SENIX X6 delivers a robust 60V brushless motor that rivals gas-powered mowers in performance, making it an excellent choice for demanding yards. Compared to the Greenworks 48V, the X6 offers more power and longer battery life, with up to 60 minutes of mowing time. Its 3-in-1 system and self-propelled drive make it versatile and easy to handle, especially on uneven terrain or thick grass. The smart display adds convenience by providing real-time feedback, but its weight and price point might be limiting for casual or small-yard users. Overall, this mower is best for those who need maximum power and runtime without the hassle of gas, though it may be heavier and more expensive than some competitors.
Pros:- Powerful 60V brushless motor for tough conditions
- Up to 60 minutes runtime for large areas
- Smart display provides real-time operational info
- 3-in-1 cutting system for versatility
Cons:- Heavier than some lighter models, impacting maneuverability
- Higher price than basic electric models
- Battery life may fluctuate with grass density
Best for: Homeowners with large, challenging lawns who need high power and extended runtime at a reasonable price.
Not ideal for: Users with small or flat lawns who prefer lightweight, budget-friendly options or minimal features.
- Battery:8.0Ah
- Power:60V MAX
- Cutting Width:21 inches
- Runtime:Up to 60 minutes
- Features:Smart display, 3-in-1 system
- Warranty:5-year limited on tool
Our verdict“This mower offers excellent power and runtime for large or difficult lawns, with some weight and cost considerations.”
Greenworks 80V 21″ Self-Propelled Cordless Lawn Mower with Brushless Motor, LED Lights, 4.0Ah Battery & Rapid Charger
The Greenworks 80V mower is tailored for homeowners who want powerful, quiet, and feature-rich mowing, especially in early morning or evening. Its 80V brushless motor offers more torque and less noise than gas models, with a 4.0Ah battery that delivers around 40-45 minutes of runtime—adequate for medium to large lawns. The inclusion of LED headlights enhances visibility, a feature absent in most competitors like the NovorikX, making it ideal for low-light conditions. The 4-in-1 system provides comprehensive mowing options, but the weight, especially with the steel deck, can be demanding on uneven terrain. This model suits users seeking maximum power, quiet operation, and advanced features, though at a higher cost.
Pros:- Powerful 80V brushless motor with high torque
- Quiet operation, significantly less noise than gas mowers
- LED headlights for night or early morning mowing
- 4-in-1 system for versatile cutting
Cons:- Heavier weight can challenge maneuverability
- Battery runtime may be shorter on thick or tall grass
- Higher initial purchase price
Best for: Homeowners who prioritize power, quiet operation, and early or late mowing without the noise of gas engines.
Not ideal for: Small yard owners or those with limited storage space due to the mower’s weight and size.
- Voltage:80V
- Battery:4.0Ah
- Cutting Width:21 inches
- Runtime:Approximately 40-45 minutes
- Lighting:LED headlights
- System:4-in-1
Our verdict“This model is best for users seeking high power, quiet operation, and added convenience for evening or early morning mowing.”
Greenworks 40V 21-inch Brushless Cordless Self-Propelled Lawn Mower with 5.0Ah Battery and Charger
This Greenworks model stands out for its blend of power and convenience, offering a brushless motor that delivers increased torque and quieter operation compared to standard brushed motors, making it the top choice for most homeowners. Its self-propelled system simplifies mowing on tougher terrains, and the 7-position height adjustment ensures versatile cutting. While the 45-minute runtime is adequate for average yards, it may fall short for larger properties, especially since the handle lacks a foldable feature for compact storage. Compared to the WORX WG760, it offers a more straightforward design but less advanced technology like IntelliCut. The steel deck provides durability, but the absence of a foldable handle limits space-saving options. This mower is ideal for users who prioritize a reliable, easy-to-use machine with space-efficient storage.
Pros:- Powerful brushless motor for torque and quiet operation
- Self-propelled system eases mowing on tough terrain
- Vertical storage saves space
Cons:- Runtime may be insufficient for larger yards
- No foldable handle for compact storage
Best for: Homeowners with medium-sized lawns seeking a durable, straightforward self-propelled mower.
Not ideal for: Lawn owners with larger properties or those needing extended runtime for back-to-back mowing sessions, due to its 45-minute limit.
- Voltage:40V
- Cutting Width:21 inches
- Battery:5.0Ah included
- Motor Type:Brushless
- Deck Material:Steel
- Runtime:Up to 45 minutes
- Wheels:8 inches front wheels
- Height Adjustment:7 positions
- Storage:Vertical storage
Our verdict“This Greenworks model is best suited for users who want a reliable, space-efficient mower for medium-sized lawns.”
WORX Nitro Cordless Lawn Mower, 21″ Electric Mower with Variable Speed, Self-propelled Lawn Mower with Aerodeck & Intellicut, 2 × 5.0 Ah Batteries & Charger Included, WG760
This WORX model excels in technological sophistication, featuring Aerodeck technology that enhances airflow and reduces clogs, which is a step above basic deck designs like the Greenworks. Its variable speed self-propelled system allows users to set a comfortable pace, ideal for those who want control over their mowing speed, unlike simpler models. The Intellicut sensors automatically adjust cutting power for thick grass, extending runtime and improving cut quality, making it well-suited for uneven or dense lawns. However, the runtime can be limited** for larger yards, especially if the grass is thick, and the handle does not fold for compact storage. Unlike the SENIX X6, which offers longer runtime, this mower offers more intuitive controls and airflow technology. It’s perfect for homeowners who crave smart features and efficient mowing but don’t mind shorter sessions on bigger lawns.
Pros:- Advanced Aerodeck technology for better airflow and clog prevention
- Variable speed control for personalized mowing pace
- IntelliCut sensors optimize power and efficiency
Cons:- Limited runtime for larger or very dense lawns
- Handle does not fold, affecting storage convenience
Best for: Gardeners who value adjustable speed, smart technology, and efficient airflow in a self-propelled mower.
Not ideal for: Lawn owners with extensive properties needing longer runtime, as its battery life may not suffice for large areas without multiple charges.
- Cutting Width:21 inches
- Battery:2 × 5.0Ah (20V) PowerShare Pro
- Motor:Brushless
- Features:Aerodeck, IntelliCut, variable speed
- Runtime:Variable, up to 45 minutes
- Weight:Not specified
Our verdict“This mower is best suited for tech-savvy homeowners with medium-sized lawns who want control and efficiency.”
SENIX X6 60V Max 21-Inch 3-in-1 Cordless Push Lawn Mower with Battery & Charger
The SENIX X6 offers gas-like power with its robust 60V brushless motor, making it a standout for large, demanding yards. Its 8Ah battery provides up to 60 minutes of runtime, surpassing most competitors like the Greenworks 40V, which is better suited to medium-sized lawns. The 3-in-1 cutting system offers versatility for mulching, bagging, or side discharge, and the folding handle makes storage straightforward. However, because it often arrives with separate components, there can be delays in setup, and its higher power may be unnecessary for smaller lawns. The 5-year warranty adds confidence in its durability, but the overall weight and bulk could challenge maneuverability for some users. This mower is best for those who need extended runtime and maximum power for demanding or large properties.
Pros:- Powerful 60V brushless motor for demanding tasks
- Extended runtime of up to 60 minutes
- Versatile 3-in-1 cutting system
Cons:- May arrive with components separately, causing initial delays
- Heavier and bulkier, affecting maneuverability
Best for: Homeowners with large, rugged lawns requiring long runtime and high power, and who prioritize durability.
Not ideal for: Small yard owners or those with limited storage space, due to its size and heavier build.
- Voltage:60V Max
- Cutting Width:21 inches
- Battery Capacity:8 Ah
- Runtime:Up to 60 minutes
- Features:3-in-1 cutting system, foldable handle
- Warranty:5-year limited
Our verdict“This mower is best suited for large yards needing extended power and versatile cutting options, accepting some setup delays.”
WORX Nitro Cordless Lawn Mower, 21-inch Electric Mower for 1/2 Acre, Brushless Push Lawn Mower with 7-Position Height Adjustment, 2 × 5.0 Ah Batteries & Charger Included
This WORX model balances performance and affordability, with AeroDeck technology that enhances airflow and cut quality, notably improving over basic deck designs like the Greenworks 40V. Its brushless motor offers longer runtime and more power compared to older brushed motors, and the 7-position height adjustment provides precise control. The automatic IntelliCut sensors adapt to grass thickness, optimizing battery use and ensuring efficient cutting. While its runtime might be less suited for very large lawns, the multi-functionality (mulching, bagging, side discharge) offers versatility without additional equipment. The handle folds easily, aiding storage, though some users report the height adjustment lever less precise than premium models. This mower suits budget-conscious users who want good features without sacrificing power.
Pros:- Efficient AeroDeck technology for better airflow and cut quality
- Powerful brushless motor with longer runtime
- Automatic speed adjustment for different grass conditions
Cons:- Limited runtime for extensive lawns
- Some users find the height adjustment less precise
Best for: Homeowners seeking reliable, feature-rich mowing at a more accessible price point for medium-sized lawns.
Not ideal for: Large yard owners or those needing maximum runtime, as battery life may be limiting for extensive mowing sessions.
- Cutting Width:21 inches
- Battery:2 × 5.0Ah (20V) PowerShare
- Motor:Brushless
- Height Adjustment:7 positions (1.5″ – 4″)
- Features:AeroDeck, IntelliCut, multiple modes
- Included Accessories:Charger, collection bag, side-discharge chute, mulch plug
Our verdict“This mower offers a strong mix of features for budget-conscious homeowners with medium-sized lawns who want reliable performance.”
How We Picked
These products were selected based on a combination of performance, build quality, usability, and value. Priority was given to models with reliable battery life, effective self-propulsion, and user-friendly features that make mowing easier. We also considered brand reputation and customer feedback to ensure durability and satisfaction. The ranking reflects a balanced approach, favoring models that deliver strong performance while offering good value for different yard sizes and user needs.| 21 inch self propelled battery mower | Runtime |
|---|---|
| Greenworks 48V | — |
| NovorikX 60V 5Ah Self-Propelle | Up to 65 minutes |
| Litheli 21" 40V Cordless Lawn | Up to 45 minutes |
| SENIX X6 60V Max Cordless Lawn | Up to 60 minutes |
| Greenworks 80V 21" Self-Propel | Approximately 40-45 minutes |
| Greenworks 40V 21-inch Brushle | Up to 45 minutes |
| WORX Nitro Cordless Lawn Mower | Variable, up to 45 minutes |
| SENIX X6 60V Max 21-Inch 3-in- | Up to 60 minutes |
| WORX Nitro Cordless Lawn Mower | — |
Factors to Consider When Choosing Best 21 Inch Self Propelled Battery Mowers
Choosing the right 21 inch self propelled battery mower involves evaluating several key factors to match your specific yard and mowing habits. Beyond basic specs, understanding how features translate into real-world benefits can help you avoid costly mistakes and find a mower that truly fits your needs.Battery Capacity and Runtime
Battery capacity directly impacts how long you can mow before recharging. Larger capacities, measured in Ah, generally provide longer runtimes but also add weight and cost. Consider your yard size: larger lawns benefit from higher capacity batteries or multiple batteries, especially if you prefer to mow in one session without interruption.
Power and Motor Efficiency
Brushless motors tend to be more efficient, quieter, and durable than brushed options. Power output influences cutting performance, especially on thicker grass or uneven terrain. A model with a good balance of power and efficiency ensures cleaner cuts and less strain on the motor, extending its lifespan.
Self-Propulsion System
This feature reduces user fatigue on larger or hilly lawns. However, it can increase the mower’s weight and complexity, impacting maneuverability and storage. Decide if the convenience justifies the added cost and weight, especially if you primarily mow smaller or flat areas.
Additional Features
Features like LED headlights, variable speed controls, and mulching or bagging options enhance usability. While these extras can improve the mowing experience, they often come with a higher price tag. Prioritize features that directly improve your mowing efficiency and comfort.
Price and Value
More expensive models generally offer longer battery life, better build quality, and advanced features. However, assess whether these extras are necessary for your yard size and mowing frequency. Sometimes, a mid-range mower with good basic performance provides the best value for typical homeowners.
Frequently Asked Questions
How long does the battery typically last on these mowers?
Battery runtime varies depending on capacity and grass conditions. Most 21-inch self-propelled models offer between 30 to 60 minutes of mowing per charge, which is sufficient for medium-sized lawns. Investing in additional batteries or higher-capacity models can extend mowing time for larger yards.
Are self-propelled battery mowers suitable for hilly terrain?
Yes, self-propelled models are generally better suited for hilly or uneven terrain because they reduce user effort. Look for mowers with adjustable speeds and robust drive systems to handle slopes comfortably. Keep in mind that heavier models might be harder to maneuver on steep inclines.
Can I use these mowers on thick or tall grass?
Most modern battery mowers are capable of handling thick grass, especially those with higher power ratings and larger blades. However, extremely dense or tall grass may require slower mowing speeds or multiple passes. Ensuring your mower has sufficient motor power and blade sharpness is key to maintaining performance.
How do I choose between brushless and brushed motors?
Brushless motors tend to be more durable, efficient, and quieter than brushed ones, making them a better long-term investment. They also require less maintenance and are generally more energy-efficient, translating into longer battery life. If budget allows, opting for a brushless motor is usually worth the extra cost.
Is it worth paying more for a mower with more features?
Paying extra for features like LED headlights, variable speed, or mulching capabilities can enhance your mowing experience, especially if you have specific needs like early morning mowing or a larger property. However, for small yards or casual use, a simpler model may suffice, saving you money while still meeting your basic requirements.
